DSMs produced by ARM Limited represent the functionality of ARM devices. These models incorporate functionality to represent the behavior of the device plus additional features to assist you to understand and debug simulation runs. One such feature is the production of a trace file in human-readable form that shows the sequence of instructions executed in the device with additional details of used data values. This capability is called executed instruction trace and the data file is usually referred to as the log.eis because of its default file name.

DSMs of ARM devices usually include this trace capability. The exact format can vary between devices or from versions. This appendix describes some specific examples of the format to provide a basis for understanding any other variations of the format.

DSMs of newer ARM devices such as ARM11 processors adopt a different format that is based on ARMulator trace format. This format is described in the RealView ARMulator ISS User Guide.